Phone holder insert



FIG. 1 is a top, rear, right perspective view of a phone holder insert;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a bottom, front, right perspective view thereof.

All broken lines in the drawings illustrate portions of the phone holder insert that form no part of the claimed design. 

CLAIM I claim the ornamental design for a phone holder insert, as shown and described. 